Cluster 343: major surgery recovered effects starting weeks prior study patient fully 
Cluster 875: intra thoracic surgery abdominal injury pelvic major starting procedure effects 
Cluster 1179: starting weeks received effects therapy drug study recovered prior nitrosourea 
Cluster 1391: surgery radiation therapy weeks treatment major chemotherapy prior study recovered 
Cluster 1471: major traumatic injury surgery significant study effects recovered days weeks 
Cluster 1656: effects surgery recovered major undergone starting weeks drug prior study 
Cluster 1786: complications recovered adequately toxicity intervention major surgery starting prior therapy 
Cluster 2128: major surgery weeks planned study prior elective course starting treatment 
Cluster 2317: effects recovered surgery radiotherapy prior recent antineoplastic patients therapy chemotherapy